US3990989AExpiredUtility

Azeotropic composition containing fluorotrichloromethane and 1,1,1,3,3,3-hexafluoroisopropyl trifluoroacetate

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Assignee: PHILLIPS PETROLEUM COPriority: Jul 14, 1975Filed: Jul 14, 1975Granted: Nov 9, 1976
Est. expiryJul 14, 1995(expired)· nominal 20-yr term from priority
Inventors:Geir Bjornson
C07C 69/63C07C 67/54
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PatentIndex Score
1
Cited by
6
References
1
Claims

Abstract

An azeotropic composition made up of about 82.5 mol percent fluorotrichloromethane and about 17.5 mol percent 1,1,1,3,3,3-hexafluoroisopropyl trifluoroacetate, said composition boiling at about 22° C at about atmospheric pressure. This composition can be fractionally distilled from a crude mixture so as to separate the components from the mixture.

Claims

exact text as granted — not AI-modified
I claim: 
     
       1. An azeotropic composition which contains about 17.5 mol percent of 1,1,1,3,3,3-hexafluoroisopropyl trifluoroacetate and about 82.5 mol percent fluorotrichloromethane, which composition boils at about 22° C at about 747 torr.

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